Nut-lock



(NO Modem J. HAYES.

NUT LOCK.

No. 339,172. Patented Apr. 6, 1886.

M Z M9621,

ilNiTnn STATES PATENT OFFICE.

JOSEPH HAYES, OF DOVER, NEIV HAMPSHIRE.

NUT-LOO K.

SPECIFICATION forming part of Letters Patent No. 339,172, dated April 6,.1886.

Application filed February 8, 1886. Serial N0.191,120. (No model.)

To ctZZ whom it may concern.-

Be it known that I, J OSEPH HAYES, of Do ver, in the county ofStrafford, of the State of New Hampshire, have invented a new and usefulImprovement in N ut-Locks; and I do hereby declare the same to bedescribed in the following specification and represented in theaccompanying drawings, of which Figure l is a front elevation; and Fig.2, a transverse and vertical section of part of a railway-rail and itsfish-plates, their connecting-bolt, and a nut-lock thereto, providedwith my invention, the nature of which is defined in the claimhereinafter present-ed.

In the drawings, R denotes the rail portion; A, the screw-bolt; B, itsnut; C, the nut-lock; and D and E, the fish-plates, the said nut-lockbeing bet-ween the nut and the next adjacent fish-plate.

The nut-lock may be of the kind described and claimed in Letters PatentNo. 330,237, dated November 10, 1885, and granted to me, or it may be asimple piece of plate metal, rectangular in shape, and bent or doubledupon itself and turned at or near one end up against the edge of thenut, the lower edge resting on the rail, or the flange of the fishplateand the bolt going through the folded parts, and all being asrepresented.

In carrying out my invention, I combine with such a nut-lock a stuffingor plate, F, of an elastic material, interposed between the lapped partsa b, and filling or nearly filling the space between them, the boltgoing directly through such stufiing or plate. The said plate F may beof rawhide, or of leather board, or some other proper elastic substance,such as when the nut is screwed hard up against the outer lap, 11, ofthe nut-lock, will give way or become so pinched between the laps as tooperate as a spring to aid in preventing the nut and bolt from workingloose.

From the above it will be seen that the clastic plate by being withinthe nut-lock or between its lapped portions is not only covered andprotected thereby from rain or snow and from abrasion or wear, but issecurely held from revolving with or being revolved by the nut when thelatter is being turned against as mentioned but from being injured bythe nut.

I am aware of the compound washer described in United States Patent No.329,615, and consisting of an annulus of elastic material and anenvelope of plate metal consisting of two fiat annuli connected by aneck having a width less than either of them. I-am also aware of thewasher described in the United States Patent No. 132,807, and consistingof a wooden annulus and two annular metallic caps between which suchannulus is arranged. I am also aware of the railsplicing safetylockdescribed in the United States Patent No. 308,810. Neither of theabove-referred to devices has like my nut-lock a rectangular platefolded at its middle, and having one end--viz., the inner one-straightand extended down to the base-flange of the rail, and serving therewithto prevent the doubled or folded plate 0 from turning on the bolt, theplate near its other end being extended below or beyond, and bent upagainst the edge of the nut in order to prevent the nut from revolvingon the bolt.

The elastic plate answers the purpose of a washer to aid in preventingthe bolt and rail from working loose.

I claim In combination with the screw-bolt and its nut, and with thenut-lock consisting of the rectangular plate U, bent or folded at itsmiddle, and perforated, as described, to receive the bolt, the elasticplate F, fitting the space between the lapsof the plate, and alsoperforated to receive the bolt, the whole being so that when the plates0 and F are used on a screw-bolt going through a rail and its fishplatesone lap of the plate 0 shall extend down to or closely to the base ofthe rail and the other lap be bent againstthe edge of the not, asrepresented.

JOSEPH HAYES. IVitn esses:

O. W. WOODMAN, A. G. WHITTEMORE.

